"This is my version of a winter sock. It has a panel of Nanoseeum at the head that you can turn to a varying degree to vent or even totally enclose you. It is made from ARGON 90 and Nanoseeum so it is breathable but has a quality DWR for quilt protection."

 

The above wording is straight from Dutch, and his team. 

 

Ten-foot long with a Zip

Argon Vented Winter Sock

£95.65Price